During rainy months and school hours the parks are empty, waiting for disc golf.Portable baskets are great but they are heavy and way too expensive for a full set.

The cheapest material I've found to make portable tonals with is galvanized metal joist lining and spruce 1X2s. Besides holding up surprisingly well, I've 5 of them over 4 years old now, 10 targets can be made for under $100.